Patents by Inventor Tetsuo MIYAUCHI

Tetsuo MIYAUCHI has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • SEMICONDUCTOR DEVICE AND CONTROL METHOD OF CHARGING BATTERY
    Publication number: 20230231407
    Abstract: Provided is a semiconductor device capable of stably estimating an internal temperature of a battery. A semiconductor device coupled to a battery calculates entropy heat of the battery at a predetermined time by using a charging current of the battery and an internal temperature of the battery at a time before a predetermined time, calculates a heat generation amount of the battery from the charging current of the battery, calculates a heat radiation amount of the battery based on a temperature difference between the internal temperature at the time before the predetermined time and a surface temperature of the battery, and estimates an internal temperature of the battery at the predetermined time by using the entropy heat, the heat generation amount and the heat radiation amount.
    Type: Application
    Filed: December 27, 2022
    Publication date: July 20, 2023
    Applicant: Renesas Electronics Corporation
    Inventors: Masaki HOGARI, Masaru MIYAKE, Yasuo USUDA, Youhei KENGOYAMA, Tetsuo MIYAUCHI